Nearly one in five U.S. women has been raped at some time in her life, according to new federal data released Wednesday.

In addition, one in four women has been the victim of severe physical violence by an intimate partner, according the National Intimate Partner and Sexual Violence Survey, which was conducted by the federal Centers for Disease Control and Prevention.

“This landmark report paints a clear picture of the devastating impact that these violent acts have on the lives of millions of Americans,” Health and Human Services Secretary Kathleen Sebelius said in a statement accompanying the release of the results.